Children&#39;s one-piece garment



FIG. 1 is a front perspective view of the children's one-piece garment showing my new design;

FIG. 2 is a front elevation view thereof; and,

FIG. 3 is a rear elevation view thereof.

The broken lines illustrate stitching and environment that form no part of the claim. 

CLAIM The ornamental design for a children's one-piece garment, as shown and described. 